354 results about "Dynamic filtering" patented technology

Improved approaches to flexibly implementing graphic equalizers on media players are disclosed. These approaches provide dynamic order reduction of a multi-band graphic equalizer so that equalizer effects can be timely performed with only limited computational resources. In one embodiment, a media player receives a media item and associated equalizer settings for a multi-band graphic equalizer. The media player can then automatically (i.e., without user action) approximate the multi-band graphic equalizer with the equalizer settings for the media item using a fewer number of filters. Fewer filters means order reduction, and thus reduction in computational requirements. After the multi-band graphic equalizer is approximated, the media player can present the media item to its user in accordance with the reduced complexity, approximated equalizer.

Dynamic filtering methods, systems and computer program products are provided for network performance test results which may apply network troubleshooting expertise and knowledge of network topology to select and display test results in a manner which may facilitate analysis of those results by IT staffs. In a further aspect of the present invention, a severity index is provided which may be generated based on exception events from a plurality of network performance measurements, for example, response time, throughput and availability, which measurements are generated from test results obtained from agents located on various devices on a computer network. The test results may be obtained from either passive application monitor agents or active network test agents. In another aspect of the present invention, the exception events may be detected based on automatically generated threshold criteria which may be provided user selectable sensitivity and may be based on a specified percentage criteria relative to baseline performance results. In a further aspect of the present invention, the test results may be stored using data buckets with the number of data buckets and/or the range of each of the data buckets being selected to provide a desired overall range and granularity for each of the plurality of network performance measurement types. The range (width) of some of the data buckets may be narrower than others to provide greater resolution in a region of interest.

The present invention concerns a method of quantifying, detecting and localizing leaks or flows of liquid, gasses, or particles, in an oil or gas producing well (230). The method utilizes an acoustic transducer (150) arranged in the well (230). The method comprises steps of: (a) detecting signals (210) using the transducer (150), wherein the signals (210) are generated by acoustic noise from leaks (20) or flow of liquid, gasses, or particles in surroundings of the transducer (150); (b) amplifying the signals (210) to generate corresponding amplified signals for subsequent processing in a processing unit (170) disposed locally to the transducer (150); (c) filtering the amplified signals (210) over several frequency ranges using dynamic filtering for simultaneously detecting in these frequency ranges for better optimizing the signal-to-noise ratio by filtering away background noise in the amplified signals (210), and thereby generating corresponding processed data; and (d) sending the processed data from the processing unit (170) to a unit on the surface for storage and/or viewing of said data. The invention also comprises a corresponding system for implementing the method. The method and system are beneficially adapted for a continuous measurement up and/or down the oil or gas producing well. (230) in a non-stepwise manner.

A non-linear dynamic predictive device (60) is disclosed which operates either in a configuration mode or in one of three runtime modes: prediction mode, horizon mode, or reverse horizon mode. An external device controller (50) sets the mode and determines the data source and the frequency of data. In prediction mode, the input data are such as might be received from a distributed control system (DCS) (10) as found in a manufacturing process; the device controller ensures that a contiguous stream of data from the DCS is provided to the predictive device at a synchronous discrete base sample time. In prediction mode, the device controller operates the predictive device once per base sample time and receives the output from the predictive device through path (14). In horizon mode and reverse horizon mode, the device controller operates the predictive device additionally many times during base sample time interval. In horizon mode, additional data is provided through path (52). In reverse horizon mode data is passed in a reverse direction through the device, utilizing information stored during horizon mode, and returned to the device controller through path (66). In the forward modes, the data are passed to a series of preprocessing units (20) which convert each input variable (18) from engineering units to normalized units. Each preprocessing unit feeds a delay unit (22) that time-aligns the input to take into account dead time effects such as pipeline transport delay. The output of each delay unit is passed to a dynamic filter unit (24). Each dynamic filter unit internally utilizes one or more feedback paths that are essential for representing the dynamic information in the process. The filter units themselves are configured into loosely coupled subfilters which are automatically set up during the configuration mode and allow the capability of practical operator override of the automatic configuration settings. The outputs (28) of the dynamic filter units are passed to a non-linear analyzer (26) which outputs a value in normalized units. The output of the analyzer is passed to a post-processing unit (32) that converts the output to engineering units. This output represents a prediction of the output of the modeled process. In reverse horizon mode, a value of 1 is presented at the output of the predictive device and data is passed through the device in a reverse flow to produce a set of outputs (64) at the input of the predictive device. These are returned to the device controller through path (66). The purpose of the reverse horizon mode is to provide essential information for process control and optimization. The precise operation of the predictive device is configured by a set of parameters. that are determined during the configuration mode and stored in a storage device (30). The configuration mode makes use of one or more files of training data (48) collected from the DCS during standard operation of the process, or through structured plant testing. The predictive device is trained in four phases (40, 42, 44, and 46) correspo

This invention relates to one mobile robot 3D sensor method, which comprises steps of environment information acquiring, environment information self adapting filter, environment coordinate exchanging and 3D sensing. This invention gets robot environment information through one sense platform composed of 2D laser radar, rotation bench and step motor. This invention also provides one dynamic self-adaptive filter to realize dynamic filter noise removing aim for environment information interference.

A method and apparatus for separating nanometer-sized particles of a powder. The method includes (a) feeding the powder particles into a pressurized gas stream which carries the particles into a first stage filter device of a multiple-stage separator system; (b) operating the first stage filter device to remove and collect coarse particles and a filter device in at least another stage to remove and collect finer particles of the powder; the filter device having a dynamic filter which is composed of (b1) a mesh of a multiplicity of openings with the opening size at least two times larger than the average size of the particles, (b2) vibration devices or shakers to shake off the particles that may otherwise clog up the mesh openings, (b3) size sensors to measure the sizes of the particles collected by the filter devices, and (b4) a controller to regulate the operations of the shakers and sensors in order to form desired dynamic mesh holes for the purpose of filtering out the coarse particles in the first stage or the finer particles in another stage; and (c) operating a dust collector to exhaust the residual gas, allowing the finest particles of the powder to be separated and collected.

A dynamic filter system includes a dynamic filter assembly including one or more filter elements and one or more members disposed within a housing. The filter elements and the members are interleaved and arranged to rotate with respect to one another. The dynamic filter assembly preferably includes one or more mechanisms to prevent preferential fouling.

The invention provides a preparation method for an in situ self-assembled organic/inorganic hybrid membrane based on coordination, and belongs to the technical field of membrane separation. The method provided by the invention comprises the following steps: preprocessing the organic porous membrane and enabling the surface of which to be charged; preparing membrane casting solution by dissolving metal ion, organic ligand and polymer in a solution, and carrying out standing of the membrane casting solution for deaeration; conducting dynamic filtering or static deposition of the membrane casting solution on the surface of the organic porous membrane in an alternating manner for a period of time, so as to enable the metal ion and the organic ligand to generate hybrid particle on the surface of the membrane through the layer upon layer self-assembly method in the presence of polyelectrolyte, and forming an ultra-thin separation layer which is uniform in dispersity, high in loading capacity, and can realize molecular hybridization. The invention provides a novel preparation method for the organic/inorganic hybrid membrane, and nanofiltration membrane prepared by the method is provided with the advantages of high reject rate, big flux and the like, and the method can be widely used in the filed of water processing.

Various embodiments of the present invention are directed to providing a user the ability to self-declare one or more permission attributes about the user that form the basis for the filtering (e.g., the dynamic filtering) of current and/or future content. In this manner, access to the content may thus be governed by the self-declared permission attributes (in one example (which example is intended to be illustrative and not restrictive), the present invention may operate within a secure, tracked content delivery infrastructure).

A framework for authoring and presenting an interactive exploded view diagram from an image or set of images. The framework includes an authoring component that receives the image and facilitates processing of the image into the exploded view diagram, and a viewing component that facilitates dynamic filtering of diagram information of the exploded view diagram associated with user interaction. The resulting interactive diagram is a 2.5D layer-based diagram that facilitates user interaction to expand or collapse portions of the rendered view diagram.

The invention discloses a dynamic filtering modeling downscaling method of an environment variable on the basis of low-resolution satellite remote sensing data. The dynamic filtering modeling downscaling method comprises the following steps: firstly, carrying out aggregation calculation on 1km environment variable factors including eight pieces of data i.e., a vegetation index, a digital evaluation model, daytime surface temperature, night surface temperature, a topographic wetness index, a gradient, a slope aspect and a slope length gradient, into 25km to serve as independent variables, and taking corresponding 25Km resolution TRMM (Tropical Rainfall Measuring Mission) 3B43 v7 precipitation data as a dependent variable. An M5 method divides data sets formed by each environment variable into different vector spaces according to geographical similarity, then, the most effect environment variable is independently dynamically filtered in different vector spaces, and a divisional multiple regression model is independently established in the corresponding vector space; and the model is finally applied to the 1km environment variable to finally obtain a precipitation product of the 1km resolution. A downscaling result obtained by partitioning and dynamic factor filtering is obviously superior to a downscaling result based on a conventional regression model.

A vehicle stability enhancement system that is adapted for an estimated driver workload. The system includes a driver workload estimation processor that estimates the driver workload based on certain factors, such as the vehicle speed or driver-behavior factors. The driver workload estimation is used to adjust the damping ratio and natural frequency in dynamic filters in a command interpreter to adjust a desired yaw rate signal and a desired side-slip signal. The driver workload estimation is also used to generate a yaw rate multiplication factor and a side-slip multiplication factor that modify a yaw rate stability signal and a side-slip stability signal in a feedback control processor that generates a stability control signal.

A method for processing acoustic data comprising applying a dynamic filter band. The method and apparatus may be particularly adapted to processing sonic data to measure formation slowness in a borehole.

The invention relates to an answer sheet identification method, which comprises the following steps: dynamically filtering and obtaining a colorful image of an answer sheet; carrying out gray processing to the image; judging whether a gray image is the processing of a "black" image; carrying out local threshold value binarization processing; looking up to process a convex quadrangle on a binary image, wherein the convex quadrangle has a maximum area and is more than a certain threshold value, and four inner corners of the convex quadrangle are similar to straight angles; carrying out inclination and perspective distortion correction processing; intercepting a rectangular area, and carrying out normalized image processing; identifying student numbers; identifying test paper numbers; and identifying answers. Due to the portability of a mobile terminal, a research that a mobile terminal camera is used for scanning an answer sheet and a relevant algorithm is used for identifying becomes very meaningful, the working efficiency of a teacher can be obviously improved, and the answer sheet identification method is helpful for teaching work. The answer sheet identification method also can be used for reference into the identification statistical processing of information cards, such as questionnaires, votes and the like, and has a wide application value.

The invention relates to a position posture measuring system accuracy calibration method and a device based on monocular vision. The method comprises the steps of firstly using a monocular vision measuring method based on dynamic three-dimensional reconstruction for acquiring position posture variation of a target coordinate system relative to a camera coordinate system; then using a joint calibration method based on an orthogonal vector and a dynamic filter for acquiring a relative position posture relation between an inertial measurement unit (IMU) coordinate system and the target coordinatesystem, transferring first position posture data under the IMU coordinate system, comparing the first position posture data with position gesture data output by POS, and calibrating the measuring accuracy of the POS. The method and the device provided by the invention realize effective calibration of the position posture accuracy of the POS, have the characteristics of high accuracy and simplicity in implementation, and can be used for calibrating the position posture accuracy of current low-accuracy and high-accuracy inertial products indoors.

A dynamic filtering module receives a request to perform an operation on data in the database and a input. The dynamic filtering module provides as an output a modified request to a data access system. The modified request can include one or more restrictions added to the original request pertaining to which data will be accessed as a function of the input.

An integrating rod (200) for use with a multiple segment dynamic filter, such as a spiral dichroic color wheel having three or more narrow filters adjacent to the exit face (206) to enable the integrating rod to recapture light rejected by a given segment of the dynamic filter. The rejected light travels back through the integrating rod where a majority of the light strikes the mirrored entrance face (202). Light reflected by the mirrored entrance face, or light exiting through the entrance aperture (204) and returning to the integrating rod after being reflected by the lamp reflector, once again travels to the exit face (206) of the integrating rod (200). After exiting through the exit face (206) of the integrating rod (200) a second time, the recycled light has a good chance of striking a different filter segment of the dynamic filter and being used by the display system.

An automotive audio controller is provided for receiving an audio signal from an audio source and providing a filtered audio signal that may help compensate for ambient noise in the automobile. The audio controller may have a vibration sensor that generates a vibration signal indicative of vibrations in the automobile. A dynamic filter of the audio controller may receive the vibration signal and the audio signal, and change the gain level and/or tone of the audio signal based on the vibration signal to generate the filtered audio signal. The audio controller also may receive a speed signal, and change the gain level and/or tone of the audio signal based on the speed signal to generate the filtered audio signal.

Duplex operation for ultrasound imaging uses a single fixed voltage level. Both B-mode and color-mode imaging are performed using a power level that may be less than the power level for single-mode B-mode imaging, and may be greater than the power level for single-mode color-mode imaging. A duty cycle of color-mode pulses may be reduced. To enhance image quality, the number of cycles in the B-mode pulse profile may be increased. To enhance image quality, the center frequency of the B-mode pulse profile may be reduced, and dynamic filtering for B-mode received pulses may be appropriately modified.

The invention discloses a spiral extrusion type sludge dewaterer comprising a frame (1), a water inlet part, an sludge outlet part (41), an water outlet part, a screw axis (2) and filter disc groups formed by the crossover interval arrangement of a plurality of annular static filter discs (5) and annular dynamic filter discs (6), wherein, each static filter disc (5) is fixed relatively to the frame (1), each dynamic filter disc (6) can form upper and lower spacing swinging movement relative to the frame (1) following the screw axis (2) under the driving of a transmission mechanism, and besides, the distance between the adjacent two static filter discs (5) is a little bigger than the thickness of the dynamic filter disc (6) so as to form a clearance (7) for water to flow through between the static filter discs (5) and dynamic filter discs (6). Compared with the prior art, the effluent water directly flows out from the clearances between filter disc groups, thus avoiding the abrasive action of sludge to the static filter discs and dynamic filter discs; and the device is long in service time, can realize solid-liquid separation by using only one power supply, and is low in energy consumption, and the parts is convenient to arrange, simple in structure and easy to practically implement.

There is presented a system and method enabling visual filtering of content. The system comprises a server, a content database storing content units and accessible through the server, and a filtering and display application. The filtering and display application is configured to enable visual filtering of the content units by filtering a plurality of graphical representations corresponding to a plurality of content units stored by the system, to extract a first plurality of graphical representations for displaying to a user, displaying the first plurality of graphical representations as active graphical representations selectable by the user in a first featured display, and dynamically filtering the first plurality of graphical representations and replacing the first featured display with another featured display of a first subset of active graphical representations selectable by the user according to an input received from the user.

Profile information for a user is generated and based on the profile information predictive data objects associated with a particular user are generated. Predictive data objects for the user are transmitted and at least one data object from the generated predictive data objects is selected. An option for the user to discover an additional data object from an internal or external network related to the selected data object is provided and information on the discovered data object is stored. An option for the user to share the selected data object to other users within the internal or external network is provided and information on the selected data object is stored. The profile information comprises at least one of the following dynamic filters: personal filter, social filter or contextual filter.